Let's assume Satoshi (the entity) is insanely patient, decides to wait until say 2015, by then BTC is trading around $1000/BTC (theoretical). He is then sitting on BILLIONS of dollars in value. If he feels the market can bear it, he starts liquidating and reveals himself. Assuming the market doesn't collapse and he isn't kidnapped, he would quickly become one of the wealthiest people on the planet (top 20).